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Preparation of Polyoxometalate-based Photo-responsive Membranes for the Photo-activation of Manganese Oxide Catalysts
Published on: August 7, 2018
Coupling of manganese oxidative crystallization and thallium immobilization under light irradiation
Jielong Cao1,2,3,4, Qingze Chen1,2,3,4, Xun Liu1,2,3,4
1State Key Laboratory of Advanced Environmental Technology, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China. chenqingze@gig.ac.cn.
Abstract:
This study investigates the mutual influence of Mn(II) oxidative crystallization and thallium (Tl) immobilization in nitrate solution under light irradiation. MnOx formed by the photochemical oxidation of Mn(II) effectively removed Tl(I) through adsorption and coprecipitation, with Mn(II) inhibiting the oxidation of Tl(I) to more toxic Tl(III). In turn, Tl(I) suppressed the reductive transformation of δ-MnO2, which favored its own immobilization.

